Scraper for tractors



Patented oet. 19, 1937v l t .f j 'i 2,096,656

UNIT-ED s'rMEs.I PATENT OFFICE scmlrnatssnac'rons i l i 'A i This invention relates t'o ground scrapers, andsecured together at their rear ends by an abutits general object is to provide a scraper that ment block 5, and adjacent to their forward ends is primarily designed for use on tractors, especialby an abutment block 6, the .block 5 .bridging the ly of the field work type, to level the ground in under sides of the strips 4 while the' block 6 5 advance of the front wheels-thereef-,-to=provide*bidges the upper Sides thereof. aS best Shown a smooth traveling surface therefor, with result in Figure 1; my scraping device will over-come all of the well 'The body is pivotally secu'red to vthe attaching known diflculties caused by the uneven ground arm I by a pivot pin' 1 which is mounted in the surfaces and allow normal driving and operation bearing collar 3 and extends fhIOUEh the Strips l of the tractor at au'times, l, as best shown in Figure 3. The body is heldA 1G A further object is to provide a scraping device in normal horizontal DOSitiOn by a s rew bolt 8 for tractors, that will over-ride fixed obstructions, that is threaded'through the attachin armi and thereby preventing damage or breakage to the engages with the rear abutment block 5. That d parts and is manually movable into and out of structure also provides for vertical adjustment of l use, 'v the scraping device, so that the scraping elements 15 Another object isto provide a ground scraping vwhich will be presently described can bev adjusted device of the character set forth, that can be with respect to the ground, aS Wi11`be. apparent' readily applied to all types of tractors, is simple upon inspection of Figure '1. in construction, inexpensive to manufacture and f' Mounted in bearing openings adjacent .to the '20 extremely eilicient in operation, use and service. forward ends of the body strips 4. 1S e Shaft 9 20 This invention also consists`\in certain other which is of a length to extend a considerable disfeatures of construction and in the combination tance laterally of the Strips 4 and Secured t0 and arrangement of\the several parts, to be herethe outer ends'of the shaft land depending A inafter' fully described, illustrated in the accomtherefrom are the shanks or arms I0 of scraping' panying drawing and specifically pointed out in blades Il, the blades being fixed to the lower 25 the appended claims. ends of the arms i0 by rivets or other suitable 1 In describing the invention in detail, reference securing means, and are shown as being 0f Subwill be had to the accompanying drawing wherestantially oval formation, with straight ends thatl in like characters denote like or corresponding merge into the upper and lower curved vedges parts throughout the several views, and lin which: thereof, by vrounded corners as clearly shown in .30

Figure 1 is a verticaF-isectional view' taken Figure 2. -v

through the scraping device which forms the sub- Secured to and rising from the shaft Q for disject matter of the present invention, applied to posal between the body strips 4 is 'a lever i2 which one type of tractor. A is shown in Figure .1 as having the shaft extend- Figure2is a front view thereof. l l ing therethrough, but in Figure 4'the lever'isa Figure 3 is a top plan view'of a device per se. shown as beingwelded'to the shaft. In any event, 'l Figure 4 is a detailed view of a slightly modithe lever normally rests against the abutment fied form ofconnecting means. block 6, and is held accordingly by a coil spring'- Referring to the drawing in detail, letter A-in- I3 which has itsouter end connected to the up` .4o dicates a tractor of the type that includes aper end of the lever, while the opposite end has 40 front axle housing B, to which is attached the secured thereto an eye bolt l'Il that extends scraping device which forms the subject matter through an opening in the rearwardly inclined of the present invention. However, I want it upper end portion of a bracket strip I5, the latunderstoodthat my device can be applied to' anyter being xed between the body strips, and the lif type of tractor, for use therewith during field eye bolt is provided with a nut asshown for adwork. justing the spring, as will be'apparent.' By the The device includes an attaching arxn i pro; construction,'it will be obvious that the blades are vided with a plurality of openings` adjacent one normally heldin vertical position, directly in adend portion thereof to receive a. screw bolt 2 for `Vance of the front wheels oi' the tractor, but Vdisposal through any one of the openings, for should the blades'contact aiixed abutment, such 50 adjustably ixingthe arm to the axle housing as as a rock, stump'or the like theyyvill be removed shown, andthe armvterminates at its forward end rearwardly against the action 'of the Vspring il,

in a bearing collar-53. to override the obstruction thereby preventing The` body of the scraping device includes a pair breakage or damage tothe parts. 'i

of spaced parallel elongated strips 4V that are The scraping elements disposed in to and 55 ing-means which preferably includes a chain Il that is connected to the upper endof the lever I2, and the chain is connected to suitable means which is manuallyl actuated from the drivers seat of the tractor.

.It will be obvious that when the scraping elements are lifted, the body moves` on the pivot pin 1, and when released they will fall by gravity to their normal position as shown in Figure 1.

l It -is thought from the foregoing description that the advantages and novel features of the in vention will be readily apparent.

It is to be understood that changes may be' made in the construction and in the combina-` tion and arrangement of the several parts, provided that such changes fall within the scope of the appended claims. l

What! claim is: 1. A scraper attachment for a tractor, comprising an attaching arm, means for adiustably securing the attaching arm to the tractor, a body pivotally secured to the attaching arm, a shaftV journaled in the body. arms. secured to and depending from the shaft, scraping blades `xed to the lower ends of the arms and disposed in advance of the front wheels of the tractor, a lever secured to the shaft and rising therefrom, abutsecured to the attaching arm and extending i'or` 9,090,650 out oi'use, through the instrumentality of liftwardly therefrom,.a shaft Journaled in the forward end of the body and, extending laterally thereof, arms secured to and depending from the outer ends of the shaft, scraping blades nxed to the lower ends of the arms and disposed in advance of the front wheels of the tractor, a lever secured to and rising from the shaft, a bracket secured to the body, spring. means connected to the lever and adiustably mounted in the bracket, abutment means on the body and arranged in the path of the lever, means for holding the body normally positioned with respect to the attaching arm and including screw means, and abut-` ment means engaged lby the screw means and cooperating therewith for adjusting the height of the scraping blades.

3. A scraper attachment for a tractor, comprising anattaching arm, means for adjustably securing the attaching arm to the tractor, a body pivotally secured to the attaching arm and extending forwardly therefrom, a shaft journaled in the forward end of the body, arms secured to the shaft and depending therefrom, scraping blades iixed to the arrns and arranged in advance of the front wheels of the tractor, a lever secured to and rising from the shaft, abutment.

means secured to the -body and arranged in they path of the lever, adjustable spring means for holding the lever against the abutment means, abutment means secured to the body, screw means engageable with the latter abutment means for holding the body normally positioned nwith respect to the attaching-arm and forA adjusting the height of the scraping blades; and lifting means connected to the lever for moving the body on its pivot for disposing the scraping lblades into and out of use.

, CHARLES n. s'noULrL. 

